AP Physics

Unit 6 - Rotational Motion

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A car is moving up the side of a circular roller coaster loop of radius 12 m. The angular velocity is 1.8rad/s 1.8 \, \text{rad/s} and angular acceleration is 0.82rad/s2 -0.82 \, \text{rad/s}^2 . The car is at the same elevation as the center of the loop. Find the magnitude and direction of the acceleration.

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40.13m/s240.13 \, \text{m/s}^2